added tests, edited script.js to make tests work

Author: cosmicCode42

assets/js/script.js

@@ -1,6 +1,4 @@
 const listOfNodes = Array.from(document.querySelectorAll('.node'));
-const highScoreRef = document.querySelector('#highscore');
-const maxLengthRef = document.querySelector('#maxlength');
 
 /**
  * The game's settings.
@@ -142,6 +140,10 @@ const playerTurn = () => {
         };
     } else {
         alert("BZZT. From the top.");
+
+        const highScoreRef = document.querySelector('#highscore');
+        const maxLengthRef = document.querySelector('#maxlength');
+        
         if (highScoreRef.innerHTML < gameConfig.score) {
             highScoreRef.innerHTML = gameConfig.score;
         };

assets/js/tests/script.test.js

@@ -142,4 +142,20 @@ describe("gameplay is functioning properly", () => {
     test("turnTime should be reduced by 100", () => {
         expect(gameConfig.turnTime).toEqual(300);
     });
+});
+
+describe("scores are updating properly", () => {
+    beforeAll(() => {
+        gameConfig.patternCount = 7;
+        gameConfig.currentPat = [4, 6, 1, 7, 2, 3, 5];
+        gameConfig.playerInput = [4, 6, 1, 7, 2, 3, 2];
+        gameConfig.score = 27;
+    });
+    test("high score is correctly updated", () => {
+        playerTurn(); 
+        expect(document.querySelector('#highscore').innerHTML).toBe("27");
+    });
+    test("max length is correctly updated", () => {
+        expect(document.querySelector('#maxlength').innerHTML).toBe("7");
+    });
 });